過去分詞にbuy
答bought
buy → bought → bought
過去分詞にsend
答sent
send → sent → sent
過去分詞にhold
答held
hold → held → held
過去分詞にwear
答worn
wear → wore → worn
受動態にThe children ate all the cakes.
答All the cakes were eaten by the children.
were + eaten + by ~
受動態にMs. Green spoke English.
答English was spoken by Ms. Green.
was + spoken + by ~
受動態にMy sister used this computer.
答This computer was used by my sister.
was + used + by ~
否定文にThe window was broken by the boys.
答The window was not broken by the boys.
was のうしろに not
否定文にThese keys were found by a young man.
答These keys were not found by a young man.
were のうしろに not
疑問文に→Yesで答えるThis soup was cooked by my grandmother.
答Was this soup cooked by my grandmother? ― Yes, it was.
Was を主語の前に。答えの主語は it